<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * functions for multi submit forms
 *
 * @usedby  mult_submits.inc.php
 *
 * @package PhpMyAdmin
 */
namespace PhpMyAdmin;

use PhpMyAdmin\Operations;
use PhpMyAdmin\RelationCleanup;
use PhpMyAdmin\Sql;
use PhpMyAdmin\Table;
use PhpMyAdmin\Transformations;
use PhpMyAdmin\Url;
use PhpMyAdmin\Util;

/**
 * PhpMyAdmin\MultSubmits class
 *
 * @package PhpMyAdmin
 */
class MultSubmits
{
    /**
     * Gets url params
     *
     * @param string     $what               mult submit type
     * @param bool       $reload             is reload
     * @param string     $action             action type
     * @param string     $db                 database name
     * @param string     $table              table name
     * @param array      $selected           selected rows(table,db)
     * @param array|null $views              table views
     * @param string     $original_sql_query original sql query
     * @param string     $original_url_query original url query
     *
     * @return array
     */
    public static function getUrlParams(
        $what, $reload, $action, $db, $table, array $selected, $views,
        $original_sql_query, $original_url_query
    ) {
        $_url_params = array(
            'query_type' => $what,
            'reload' => (! empty($reload) ? 1 : 0),
        );
        if (mb_strpos(' ' . $action, 'db_') == 1) {
            $_url_params['db']= $db;
        } elseif (mb_strpos(' ' . $action, 'tbl_') == 1
            || $what == 'row_delete'
        ) {
            $_url_params['db']= $db;
            $_url_params['table']= $table;
        }
        foreach ($selected as $sval) {
            if ($what == 'row_delete') {
                $_url_params['selected'][] = 'DELETE FROM '
                    . Util::backquote($table)
                    . ' WHERE ' . $sval . ' LIMIT 1;';
            } else {
                $_url_params['selected'][] = $sval;
            }
        }
        if ($what == 'drop_tbl' && !empty($views)) {
            foreach ($views as $current) {
                $_url_params['views'][] = $current;
            }
        }
        if ($what == 'row_delete') {
            $_url_params['original_sql_query'] = $original_sql_query;
            if (! empty($original_url_query)) {
                $_url_params['original_url_query'] = $original_url_query;
            }
        }

        return  $_url_params;
    }

    /**
     * Builds or execute queries for multiple elements, depending on $query_type
     *
     * @param string     $query_type  query type
     * @param array      $selected    selected tables
     * @param string     $db          db name
     * @param string     $table       table name
     * @param array|null $views       table views
     * @param string     $primary     table primary
     * @param string     $from_prefix from prefix original
     * @param string     $to_prefix   to prefix original
     *
     * @return array
     */
    public static function buildOrExecuteQueryForMulti(
        $query_type, array $selected, $db, $table, $views, $primary,
        $from_prefix, $to_prefix
    ) {
        $rebuild_database_list = false;
        $reload = null;
        $a_query = null;
        $sql_query = '';
        $sql_query_views = null;
        // whether to run query after each pass
        $run_parts = false;
        // whether to execute the query at the end (to display results)
        $execute_query_later = false;
        $result = null;

        if ($query_type == 'drop_tbl') {
            $sql_query_views = '';
        }

        $selected_cnt   = count($selected);
        $deletes = false;
        $copy_tbl =false;

        for ($i = 0; $i < $selected_cnt; $i++) {
            switch ($query_type) {
            case 'row_delete':
                $deletes = true;
                $a_query = $selected[$i];
                $run_parts = true;
                break;

            case 'drop_db':
                RelationCleanup::database($selected[$i]);
                $a_query   = 'DROP DATABASE '
                           . Util::backquote($selected[$i]);
                $reload    = 1;
                $run_parts = true;
                $rebuild_database_list = true;
                break;

            case 'drop_tbl':
                RelationCleanup::table($db, $selected[$i]);
                $current = $selected[$i];
                if (!empty($views) && in_array($current, $views)) {
                    $sql_query_views .= (empty($sql_query_views) ? 'DROP VIEW ' : ', ')
                              . Util::backquote($current);
                } else {
                    $sql_query .= (empty($sql_query) ? 'DROP TABLE ' : ', ')
                               . Util::backquote($current);
                }
                $reload    = 1;
                break;

            case 'check_tbl':
                $sql_query .= (empty($sql_query) ? 'CHECK TABLE ' : ', ')
                           . Util::backquote($selected[$i]);
                $execute_query_later = true;
                break;

            case 'optimize_tbl':
                $sql_query .= (empty($sql_query) ? 'OPTIMIZE TABLE ' : ', ')
                           . Util::backquote($selected[$i]);
                $execute_query_later = true;
                break;

            case 'analyze_tbl':
                $sql_query .= (empty($sql_query) ? 'ANALYZE TABLE ' : ', ')
                           . Util::backquote($selected[$i]);
                $execute_query_later = true;
                break;

            case 'checksum_tbl':
                $sql_query .= (empty($sql_query) ? 'CHECKSUM TABLE ' : ', ')
                           . Util::backquote($selected[$i]);
                $execute_query_later = true;
                break;

            case 'repair_tbl':
                $sql_query .= (empty($sql_query) ? 'REPAIR TABLE ' : ', ')
                           . Util::backquote($selected[$i]);
                $execute_query_later = true;
                break;

            case 'empty_tbl':
                $deletes = true;
                $a_query = 'TRUNCATE ';
                $a_query .= Util::backquote($selected[$i]);
                $run_parts = true;
                break;

            case 'drop_fld':
                RelationCleanup::column($db, $table, $selected[$i]);
                $sql_query .= (empty($sql_query)
                    ? 'ALTER TABLE ' . Util::backquote($table)
                    : ',')
                           . ' DROP ' . Util::backquote($selected[$i])
                           . (($i == $selected_cnt-1) ? ';' : '');
                break;

            case 'primary_fld':
                $sql_query .= (empty($sql_query)
                    ? 'ALTER TABLE ' . Util::backquote($table)
                        . (empty($primary)
                        ? ''
                        : ' DROP PRIMARY KEY,') . ' ADD PRIMARY KEY( '
                    : ', ')
                           . Util::backquote($selected[$i])
                           . (($i == $selected_cnt-1) ? ');' : '');
                break;

            case 'index_fld':
                $sql_query .= (empty($sql_query)
                    ? 'ALTER TABLE ' . Util::backquote($table)
                        . ' ADD INDEX( '
                    : ', ')
                           . Util::backquote($selected[$i])
                           . (($i == $selected_cnt-1) ? ');' : '');
                break;

            case 'unique_fld':
                $sql_query .= (empty($sql_query)
                    ? 'ALTER TABLE ' . Util::backquote($table)
                        . ' ADD UNIQUE( '
                    : ', ')
                           . Util::backquote($selected[$i])
                           . (($i == $selected_cnt-1) ? ');' : '');
                break;

            case 'spatial_fld':
                $sql_query .= (empty($sql_query)
                    ? 'ALTER TABLE ' . Util::backquote($table)
                        . ' ADD SPATIAL( '
                    : ', ')
                           . Util::backquote($selected[$i])
                           . (($i == $selected_cnt-1) ? ');' : '');
                break;

            case 'fulltext_fld':
                $sql_query .= (empty($sql_query)
                    ? 'ALTER TABLE ' . Util::backquote($table)
                        . ' ADD FULLTEXT( '
                    : ', ')
                           . Util::backquote($selected[$i])
                           . (($i == $selected_cnt-1) ? ');' : '');
                break;

            case 'add_prefix_tbl':
                $newtablename = $_POST['add_prefix'] . $selected[$i];
                // ADD PREFIX TO TABLE NAME
                $a_query = 'ALTER TABLE '
                    . Util::backquote($selected[$i])
                    . ' RENAME '
                    . Util::backquote($newtablename);
                $run_parts = true;
                break;

            case 'replace_prefix_tbl':
                $current = $selected[$i];
                $subFromPrefix = mb_substr(
                    $current,
                    0,
                    mb_strlen($from_prefix)
                );
                if ($subFromPrefix == $from_prefix) {
                    $newtablename = $to_prefix
                        . mb_substr(
                            $current,
                            mb_strlen($from_prefix)
                        );
                } else {
                    $newtablename = $current;
                }
                // CHANGE PREFIX PATTERN
                $a_query = 'ALTER TABLE '
                    . Util::backquote($selected[$i])
                    . ' RENAME '
                    . Util::backquote($newtablename);
                $run_parts = true;
                break;

            case 'copy_tbl_change_prefix':
                $run_parts = true;
                $copy_tbl = true;

                $current = $selected[$i];
                $newtablename = $to_prefix .
                    mb_substr($current, mb_strlen($from_prefix));

                // COPY TABLE AND CHANGE PREFIX PATTERN
                Table::moveCopy(
                    $db, $current, $db, $newtablename,
                    'data', false, 'one_table'
                );
                break;

            case 'copy_tbl':
                $run_parts = true;
                $copy_tbl = true;
                Table::moveCopy($db, $selected[$i], $_POST['target_db'], $selected[$i], $_POST['what'], false, 'one_table');
                if (isset($_POST['adjust_privileges']) && !empty($_POST['adjust_privileges'])) {
                    Operations::adjustPrivilegesCopyTable($db, $selected[$i], $_POST['target_db'], $selected[$i]);
                }
                break;
            } // end switch

            // All "DROP TABLE", "DROP FIELD", "OPTIMIZE TABLE" and "REPAIR TABLE"
            // statements will be run at once below
            if ($run_parts && !$copy_tbl) {
                $sql_query .= $a_query . ';' . "\n";
                if ($query_type != 'drop_db') {
                    $GLOBALS['dbi']->selectDb($db);
                }
                $result = $GLOBALS['dbi']->query($a_query);

                if ($query_type == 'drop_db') {
                    Transformations::clear($selected[$i]);
                } elseif ($query_type == 'drop_tbl') {
                    Transformations::clear($db, $selected[$i]);
                } elseif ($query_type == 'drop_fld') {
                    Transformations::clear($db, $table, $selected[$i]);
                }
            } // end if
        } // end for

        if ($deletes && ! empty($_REQUEST['pos'])) {
            $_REQUEST['pos'] = Sql::calculatePosForLastPage(
                $db, $table, isset($_REQUEST['pos']) ? $_REQUEST['pos'] : null
            );
        }

        return array(
            $result, $rebuild_database_list, $reload,
            $run_parts, $execute_query_later, $sql_query, $sql_query_views
        );
    }

    /**
     * Gets HTML for copy tables form
     *
     * @param string $action      action type
     * @param array  $_url_params URL params
     *
     * @return string
     */
    public static function getHtmlForCopyMultipleTables($action, array $_url_params)
    {
        $html = '<form id="ajax_form" action="' . $action . '" method="post">';
        $html .= Url::getHiddenInputs($_url_params);
        $html .= '<fieldset class = "input">';
        $databases_list = $GLOBALS['dblist']->databases;
        foreach ($databases_list as $key => $db_name)
            if ($db_name == $GLOBALS['db']){
                $databases_list->offsetUnset($key);
                break;
            }
        $html .= '<strong><label for="db_name_dropdown">' . __('Database') . ':</label></strong>';
        $html .= '<select id="db_name_dropdown" class="halfWidth" name="target_db" >'
            . $databases_list->getHtmlOptions(true, false)
            . '</select>';
        $html .= '<br><br>';
        $html .= '<strong><label>' . __('Options') . ':</label></strong><br>';
        $html .= '<input type="radio" id ="what_structure" value="structure" name="what"/>';
        $html .= '<label for="what_structure">' . __('Structure only') . '</label><br>';
        $html .= '<input type="radio" id ="what_data" value="data" name="what" checked="checked"/>';
        $html .= '<label for="what_data">' . __('Structure and data') . '</label><br>';
        $html .= '<input type="radio" id ="what_dataonly" value="dataonly" name="what"/>';
        $html .= '<label for="what_dataonly">' . __('Data only') . '</label><br><br>';
        $html .= '<input type="checkbox" id="checkbox_drop" value="1" name="drop_if_exists"/>';
        $html .= '<label for="checkbox_drop">' . __('Add DROP TABLE') . '</label><br>';
        $html .= '<input type="checkbox" id="checkbox_auto_increment_cp" value="1" name="sql_auto_increment"/>';
        $html .= '<label for="checkbox_auto_increment_cp">' . __('Add AUTO INCREMENT value') . '</label><br>';
        $html .= '<input type="checkbox" id="checkbox_constraints" value="1" name="sql_auto_increment" checked="checked"/>';
        $html .= '<label for="checkbox_constraints">' . __('Add constraints') . '</label><br><br>';
        $html .= '<input name="adjust_privileges" value="1" id="checkbox_adjust_privileges" checked="checked" type="checkbox"/>';
        $html .= '<label for="checkbox_adjust_privileges">' . __('Adjust privileges') . '<a href="./doc/html/faq.html#faq6-39" target="documentation"><img src="themes/dot.gif" title="Documentation" alt="Documentation" class="icon ic_b_help"></a></label>';
        $html .= '</fieldset>';
        $html .= '<input type="hidden" name="mult_btn" value="' . __('Yes') . '" />';
        $html .= '</form>';
       return $html;
    }

    /**
     * Gets HTML for replace_prefix_tbl or copy_tbl_change_prefix
     *
     * @param string $action      action type
     * @param array  $_url_params URL params
     *
     * @return string
     */
    public static function getHtmlForReplacePrefixTable($action, array $_url_params)
    {
        $html  = '<form id="ajax_form" action="' . $action . '" method="post">';
        $html .= Url::getHiddenInputs($_url_params);
        $html .= '<fieldset class = "input">';
        $html .= '<table>';
        $html .= '<tr>';
        $html .= '<td>' . __('From') . '</td>';
        $html .= '<td>';
        $html .= '<input type="text" name="from_prefix" id="initialPrefix" />';
        $html .= '</td>';
        $html .= '</tr>';
        $html .= '<tr>';
        $html .= '<td>' . __('To') . '</td>';
        $html .= '<td>';
        $html .= '<input type="text" name="to_prefix" id="newPrefix" />';
        $html .= '</td>';
        $html .= '</tr>';
        $html .= '</table>';
        $html .= '</fieldset>';
        $html .= '<input type="hidden" name="mult_btn" value="' . __('Yes') . '" />';
        $html .= '</form>';

        return $html;
    }

    /**
     * Gets HTML for add_prefix_tbl
     *
     * @param string $action      action type
     * @param array  $_url_params URL params
     *
     * @return string
     */
    public static function getHtmlForAddPrefixTable($action, array $_url_params)
    {
        $html  = '<form id="ajax_form" action="' . $action . '" method="post">';
        $html .= Url::getHiddenInputs($_url_params);
        $html .= '<fieldset class = "input">';
        $html .= '<table>';
        $html .= '<tr>';
        $html .= '<td>' . __('Add prefix') . '</td>';
        $html .= '<td>';
        $html .= '<input type="text" name="add_prefix" id="txtPrefix" />';
        $html .= '</td>';
        $html .= '</tr>';
        $html .= '<tr>';
        $html .= '</table>';
        $html .= '</fieldset>';
        $html .= '<input type="hidden" name="mult_btn" value="' . __('Yes') . '" />';
        $html .= '</form>';

        return $html;
    }

    /**
     * Gets HTML for other mult_submits actions
     *
     * @param string $what        mult_submit type
     * @param string $action      action type
     * @param array  $_url_params URL params
     * @param string $full_query  full sql query string
     *
     * @return string
     */
    public static function getHtmlForOtherActions($what, $action, array $_url_params, $full_query)
    {
        $html = '<form action="' . $action . '" method="post">';
        $html .= Url::getHiddenInputs($_url_params);
        $html .= '<fieldset class="confirmation">';
        $html .= '<legend>';
        if ($what == 'drop_db') {
            $html .=  __('You are about to DESTROY a complete database!') . ' ';
        }
        $html .= __('Do you really want to execute the following query?');
        $html .= '</legend>';
        $html .= '<code>' . $full_query . '</code>';
        $html .= '</fieldset>';
        $html .= '<fieldset class="tblFooters">';
        // Display option to disable foreign key checks while dropping tables
        if ($what === 'drop_tbl' || $what === 'empty_tbl' || $what === 'row_delete') {
            $html .= '<div id="foreignkeychk">';
            $html .= Util::getFKCheckbox();
            $html .= '</div>';
        }
        $html .= '<input id="buttonYes" type="submit" name="mult_btn" value="'
            . __('Yes') . '" />';
        $html .= '<input id="buttonNo" type="submit" name="mult_btn" value="'
            . __('No') . '" />';
        $html .= '</fieldset>';
        $html .= '</form>';

        return $html;
    }

    /**
     * Get query string from Selected
     *
     * @param string $what     mult_submit type
     * @param string $table    table name
     * @param array  $selected the selected columns
     * @param array  $views    table views
     *
     * @return array
     */
    public static function getQueryFromSelected($what, $table, array $selected, array $views)
    {
        $reload = false;
        $full_query_views = null;
        $full_query     = '';

        if ($what == 'drop_tbl') {
            $full_query_views = '';
        }

        $selected_cnt   = count($selected);
        $i = 0;
        foreach ($selected as $sval) {
            switch ($what) {
            case 'row_delete':
                $full_query .= 'DELETE FROM '
                    . Util::backquote(htmlspecialchars($table))
                    // Do not append a "LIMIT 1" clause here
                    // (it's not binlog friendly).
                    // We don't need the clause because the calling panel permits
                    // this feature only when there is a unique index.
                    . ' WHERE ' . htmlspecialchars($sval)
                    . ';<br />';
                break;
            case 'drop_db':
                $full_query .= 'DROP DATABASE '
                    . Util::backquote(htmlspecialchars($sval))
                    . ';<br />';
                $reload = true;
                break;

            case 'drop_tbl':
                $current = $sval;
                if (!empty($views) && in_array($current, $views)) {
                    $full_query_views .= (empty($full_query_views) ? 'DROP VIEW ' : ', ')
                        . Util::backquote(htmlspecialchars($current));
                } else {
                    $full_query .= (empty($full_query) ? 'DROP TABLE ' : ', ')
                        . Util::backquote(htmlspecialchars($current));
                }
                break;

            case 'empty_tbl':
                $full_query .= 'TRUNCATE ';
                $full_query .= Util::backquote(htmlspecialchars($sval))
                            . ';<br />';
                break;

            case 'primary_fld':
                if ($full_query == '') {
                    $full_query .= 'ALTER TABLE '
                        . Util::backquote(htmlspecialchars($table))
                        . '<br />&nbsp;&nbsp;DROP PRIMARY KEY,'
                        . '<br />&nbsp;&nbsp; ADD PRIMARY KEY('
                        . '<br />&nbsp;&nbsp;&nbsp;&nbsp; '
                        . Util::backquote(htmlspecialchars($sval))
                        . ',';
                } else {
                    $full_query .= '<br />&nbsp;&nbsp;&nbsp;&nbsp; '
                        . Util::backquote(htmlspecialchars($sval))
                        . ',';
                }
                if ($i == $selected_cnt-1) {
                    $full_query = preg_replace('@,$@', ');<br />', $full_query);
                }
                break;

            case 'drop_fld':
                if ($full_query == '') {
                    $full_query .= 'ALTER TABLE '
                        . Util::backquote(htmlspecialchars($table));
                }
                $full_query .= '<br />&nbsp;&nbsp;DROP '
                    . Util::backquote(htmlspecialchars($sval))
                    . ',';
                if ($i == $selected_cnt - 1) {
                    $full_query = preg_replace('@,$@', ';<br />', $full_query);
                }
                break;
            } // end switch
            $i++;
        }

        if ($what == 'drop_tbl') {
            if (!empty($full_query)) {
                $full_query .= ';<br />' . "\n";
            }
            if (!empty($full_query_views)) {
                $full_query .= $full_query_views . ';<br />' . "\n";
            }
            unset($full_query_views);
        }

        $full_query_views = isset($full_query_views)? $full_query_views : null;

        return array($full_query, $reload, $full_query_views);
    }
}
